CN1155676C - Friction material - Google Patents

Friction material Download PDF

Info

Publication number
CN1155676C
CN1155676C CNB008001332A CN00800133A CN1155676C CN 1155676 C CN1155676 C CN 1155676C CN B008001332 A CNB008001332 A CN B008001332A CN 00800133 A CN00800133 A CN 00800133A CN 1155676 C CN1155676 C CN 1155676C
Authority
CN
China
Prior art keywords
friction
general formula
friction materials
numeral
control agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB008001332A
Other languages
Chinese (zh)
Other versions
CN1294620A (en
Inventor
小川博
竹中稔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otsuka Chemical Co Ltd
Original Assignee
Otsuka Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Otsuka Chemical Co Ltd filed Critical Otsuka Chemical Co Ltd
Publication of CN1294620A publication Critical patent/CN1294620A/en
Application granted granted Critical
Publication of CN1155676C publication Critical patent/CN1155676C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/14Anti-slip materials; Abrasives
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02Compositions of linings; Methods of manufacturing
    • F16D69/025Compositions based on an organic binder
    • F16D69/026Compositions based on an organic binder containing fibres

Abstract

A friction material characterized as containing, as a friction control agent, 3 - 50 % by weight of one or more substances selected from flat layered titanates represented by the general formula (1), AxMyTi2-yO4 (wherein A represents an alkaline metal other than lithium; M represents one or more elements selected from lithium, magnesium, zinc, nickel, copper, iron, aluminum, gallium and manganese; x is a number of 0.5 - 1.0; and y is a number of 0.25 - 1.0) and flat layered titanic acids represented by the general formula (2), Hx(M'y)zTi2-yO4 .nH2O (wherein M' represents one or more elements selected from lithium, magnesium, zinc, nickel, copper, iron, aluminum, gallium and manganese; x is a number of 0.5 - 1.0; y is a number of 0.25 - 1.0; z is a number of 0 or 1; and n is a number of 0 <= n <= 2).

Description

Friction materials
The present invention relates to be applicable to the brake part that is assemblied in as in the braking devices of motor vehicle, aircraft, train and industrial equipments, as clutch facing and braking components.
The friction materials utilization that is used for making brake part so far is dispersed in organic binder bond or inorganic adhesive and is combined into whole asbestos by this tackiness agent.Yet there is the not enough and not good problem of wear hardness of frictional force in such friction materials.There are the environmental health problem in asbestos or carcinogenic substance.In the case, press for the substitute of development asbestos.
According to this demand, the friction materials that has proposed uses potassium titanate fiber as basic fiber or friction control agent.Potassium titanate fiber is different with asbestos, is non-carcinogenic substance, and excellent heat resistance can effectively prevent the phenomenon that frictional behaviour is gradually little gradually, and can effectively keep stable frictional behaviour under heating condition.
Yet, in friction materials, add potassium titanate fiber and also fail to solve satisfactorily " brake noise " phenomenon that produces in the braking devices so far.
And potassium titanate fiber has bigger volume because its fibre shape, and is mobile less, be deposited on easily on the wall of feeding-passage, thus blocking channel when creating friction material, this is a problem always.
The present invention is devoted to address the above problem, and the purpose of this invention is to provide the friction materials of the good high yield of a kind of friction and wear hardness.
The characteristics of friction materials of the present invention are that one or more that contain 3-50% (weight) are selected from general formula (1) A xM yTi 2-yO 4The plane layered titanate or general formula (2) H of expression x(M ' y) zTi 2-yO 4NH 2The material of the plane layered titanic acid that O represents is as the friction control agent, and in the general formula (1), A represents the basic metal except that lithium; On behalf of one or more, M be selected from the element of lithium, magnesium, zinc, nickel, copper, iron, aluminium, gallium or manganese; X is the numeral of 0.5-1.0; Y is the numeral of 0.25-1.0; In the general formula (2), on behalf of one or more, M ' be selected from the element of lithium, magnesium, zinc, nickel, copper, iron, aluminium, gallium or manganese; X is the numeral of 0.5-1.0; Y is the numeral of 0.25-1.0; Z is 0 or 1 numeral; N is the numeral of 0≤n≤2.Particularly, A for example is sodium, potassium, rubidium or caesium.
Material as friction control agent among the present invention, promptly respectively by the plane layered titanate or the plane layered titanic acid of general formula (1) and (2) expression, their friction and wear hardness are good, and temperature variant influence is very little, so these materials are particularly suitable for as the friction control agent that adds friction materials.Because its non-fibre shape, different with potassium titanate fiber, they can blocking channel in manufacturing processed.And, can adverse influence not arranged to Working environment owing to there is not the fiber that can suck.
Therefore friction materials of the present invention has following function and effect because of having comprised plane layered titanate and/or metatitanic acid as the friction control agent.
(1) owing to the plane laminate structure of friction control agent, its friction and wear hardness are stable.
(2) because the length thick (wide) of friction control agent is bigger than very, improved the intensity of friction materials.
(3) because the flowability of friction control agent improves, help the preparation of raw mix.
(4) since the generation of respirable dust be controlled in very low-level, the Working environment that can keep clean.
(5) because thermotolerance improves, frictional coefficient is stable from low temperature to the pyritous wide temperature range.
Fig. 1 is the relation curve of wear rate and dish type pad temperature in the expression test.
Fig. 2 is the relation curve of frictional coefficient and dish type pad temperature in the expression test.
Object lesson by the plane layered titanate of general formula (1) expression is K 0.8Zn 0.4Ti 1.6O 4, K 0.8Mg 0.4Ti 1.6O 4, K 0.8Li 0.4Ti 1.6O 4Object lesson by the plane layered titanic acid of general formula (2) expression comprises H 0.8Zn 0.4Ti 1.6O 4NH 2O (n refers to the numeral of 0≤n≤2), H 0.8Mg 0.4Ti 1.6O 4NH 2O (n refers to the numeral of 0≤n≤2), H 0.8Li 0.27Ti 1.73O 4NH 2O (n refers to the numeral of 0≤n≤2).
By the plane layered titanic acid of general formula (2) expression, the plane layered titanate of general formula (1) representative can be carried out acid treatment, its alkalimetal ion with the A representative is replaced by hydrogen ion make.Generally use hydrochloric acid during acid treatment.But be not limited to use hydrochloric acid.Other acid such as mineral acid and organic acid also can use.
For example, with K 0.8Mg 0.4Ti 1.6O 4Be the plane layered titanate of example,, can obtain with H if suitably handle with acid 0.8Mg 0.4Ti 1.6O 4NH 2O (n refers to the numeral of 0≤n≤2) is the plane layered titanic acid of example.
The length of particularly preferred plane layered titanate and metatitanic acid is the 10-500 micron, and width (thickness) is 50-1,000nm.
Titanate or metatitanic acid are made in the plane that can add 3-50% (weight) in friction materials, or two kinds all add.Unless add 3% (weight) at least, otherwise do not reach the effect that improves friction and wear hardness.On the other hand,, can not further improve the effect that improves friction and wear hardness, cause uneconomical economically on the contrary if add-on surpasses 50% (weight).
Can adopt in the following method the plane layered titanate of synthetic general formula (1) and the plane layered titanic acid of general formula (2), as the friction control agent among the present invention, though following method and not exclusive.
K now is described 0.8Mg 0.4Ti 1.6O 4(the plane layered titanate of general formula (1), wherein A is a potassium, M is a manganese, x is 0.8, y is 0.4) synthetic is by K 2O, MgO and TiO 2The crystalline powder of forming (mole mixture ratio is 0.5: 0.5: 1.5) and by K 2O and MoO 3The flux powder of forming (mole mixture ratio is 1.1: 1.0) mixes with 30: 70 molar percentage.This mixture is in 1100-1200 ℃ of heating, and cooling gradually makes crystal growth then.The product hot water heating that obtains.From product, remove flux, just obtain K 0.8Mg 0.4Ti 1.6O 4, this is a kind of plane of the present invention layered titanate.
Those skilled in the art will appreciate that the plane layered titanate of the general formula (1) of A, M, x and y value with selection, the material type and their mole mixture ratio that use by suitable selection can make.And the plane layered titanate of general formula (1) when replacing its basic metal with acid treatment with hydrogen, can make the plane layered titanic acid of general formula (2).
Particularly, friction materials of the present invention for example can comprise basic fiber, friction control agent and tackiness agent.More specifically, friction materials for example can comprise the basic fiber of 1-60 weight part, 20-80 weight part respectively by the plane layered titanate of general formula (1) and (2) expression or/and metatitanic acid as friction control agent, 10-40 weight part tackiness agent and other additive of 0-60 weight part.
The example of basic fiber comprises resin fibre such as Kevlar, steel fiber such as steel fiber and brass fiber, carbon fiber, glass fibre, ceramic fiber, rock wool, wood pulp etc.Bonding for the dispersiveness of improving basic fiber and itself and tackiness agent, these basic fibers can be with silane coupling agent as amino, epoxy and vinyl silanes coupler; Titanate coupler, phosphoric acid salt coupler etc. carry out surface treatment.
Except that the plane layered titanic acid of at least a plane layered titanate that is selected from general formula (1) and general formula (2), the friction control agent that is used for friction materials of the present invention can also comprise the auxiliary friction control agent that other type is not damaged the effect that the present invention requires.The auxiliary friction of this class control agent comprises sulfuration or unvulcanized natural and synthetic rubber powder; The cashew resin powder; Organic dust such as resin fine powder and rubber fine powder; Inorganic powder such as carbon black, powdered graphite, molybdenumdisulphide, barium sulfate, lime carbonate, clay, mica, talcum, diatomite, antigorite, sepiolite, montmorillonite, zeolite, sodium trititanate, penta sodium titanate, six potassium titanates, eight metatitanic acid first; Metal-powder such as copper, aluminium, zinc and iron; Oxide powder such as aluminum oxide, silicon-dioxide, chromic oxide, titanium oxide and ferric oxide.
The example of tackiness agent comprises organic binder bond and inorganic adhesive.The example of organic binder bond has thermosetting resin such as phenol resins, formaldehyde resin, melamine resin, Resins, epoxy, acrylic resin, aromatic polyester and urea resin; Elastomerics such as natural, nitorile, divinyl, styrene butadiene and styrene-propene-diene copolymers; Thermoplastic resin such as polymeric amide, to diphenyl sulfide, polyethers, polyimide, polyether-ether-ketone and thermoplasticity crystallized polyurethane resin.The example of inorganic adhesive comprises alumina sol, silicon dioxide gel, silicone resin etc.
When needing, except that said components, friction materials of the present invention also can comprise rust-preventive agent, wetting agent, abrasive material etc.
The method of manufacturing friction materials of the present invention is concrete regulation not.Can adopt known those common methods of friction material field.
A kind of method of friction materials of the present invention is made in explanation now, with basic fiber dispersion in tackiness agent.If desired, add a kind of control friction preparation and other additive in this dispersion, make friction material composition, be poured into a mould subsequently, hot pressing is integral form.
Besides the another kind of method of bright manufacturing friction materials of the present invention, tackiness agent is mediated in fusing in a twin screw extruder, and loading hopper adds basic fiber, friction control agent and other additive in the melt kneading thing from the side, if necessary.This molten mixture is extruded, be machined into the size of requirement then.
Add the third method of bright manufacturing friction materials of the present invention, friction material composition is dispersed in the water, be collected in one on the net, dehydration draws a slice net then, and hot pressing subsequently is an integral form.The friction materials that obtains is cutting and/or the shape of grinding for requiring suitably.
Refer now to the following examples, comparative example, experimental example, describe the present invention in detail.
Embodiment
Contain 20 weight parts by formula K 0.8Mg 0.4Ti 1.6O 4Plane layered titanate (the length 50-60 micron of expression, 0.3 micron of width, the about 180-200 of long-width ratio and slenderness ratio), 10 weight part Kevlar fat are (by TorayCo., Ltd. produce, commodity are called " Kevlar Pulp ", average fiber length is 3 millimeters), the mixture of 20 weight part tackiness agents (phenol resins) and 50 weight part barium sulfate, at 300kgf/cm 2Under the pressure, in normal temperature preliminary shaping 1 minute, in mould (170 ℃, 150kgf/cm 2Pressure, 5 minutes) make integral body, heat-treat (keeping 3 hours) then at 180 ℃.After from mould, taking out, the goods that obtain are ground precision work, obtain test dish type pad A (JIS D 4411 test films).
Comparative example
For comparing, to carry out according to the mode of embodiment, difference is, test materials B, C, D or the E that enumerates below with 30 weight parts replaces the combination of 30 weight part plane layered titanates and Kevlar, with preparation test dish type pad B-E.
Test materials B: penta potassium titanate fiber (cross-sectional dimension: 5-10 micron, length-to-diameter ratio are 5).
Test materials C: graphite fibre (6 class)
Test materials D: thick size penta potassium titanate fiber (cross-sectional dimension: 20-50 micron, length 100-300 micron)
Test materials E: fine acicular eight potassium titanate fibers (cross-sectional dimension: 0.2-0.5 micron, length 5-15 micron)
Rub(bing)test
Each test dish type pad A-E carries out constant speed friction/wear test (dish friction surface: FC25 graphitic cast iron, pressure: 10kgf/cm separately according to 3IS D4411 " brake of motor-driven vehicle pad " 2, friction velocity: 7 meter per seconds), measure its wear rate (cm 3/ Kgm) and frictional coefficient (μ).Measurement result is shown in Fig. 1 and Fig. 2.
Can know clearly that by these results friction materials of the present invention (test dish type pad A) is compared with the test dish type pad C of the comparative example that uses fibrous magnesium silicate, has good wear resistance from low temperature to the high temperature range.Find that its frictional coefficient is more stable when temperature variation.
Use the test dish type pad E (comparative example) of needle-like potassium titanate fiber though have high frictional coefficient and excellent friction coefficient temperature stability, raise with temperature, its wear rate but improves rapidly.
Use the test dish type pad D (comparative example) of penta thick potassium titanate fiber though have with friction materials of the present invention and similarly stablize rubbing characteristics,, compare the poor heat stability of its frictional coefficient with friction materials of the present invention.
The formula K that uses among the embodiment 0.8Mg 0.4Ti 1.6O 4The plane layered titanate acid treatment of expression can make formula H 0.8Mg 0.4Ti 1.6O 4NH 2The plane layered titanic acid that O represents.According to the method for embodiment, the metatitanic acid that difference is to use 20 weight parts to make above is used as friction control agent material, and the use dish type pad of making carries out rub(bing)test according to mode same as the previously described embodiments subsequently.The result shows that this dish type pad is the same with test dish type pad A, have good wear characteristic from low temperature to the high temperature range, and the thermostability of its frictional coefficient is also fine.
Commercial Application
Friction material of the present invention has good and stable coefficient of friction and wear-resisting from low temperature to the high temperature range The property. Therefore, can be used for being assemblied in brake as in the brake gear of motor vehicle, aircraft, train and industrial equipment Parts such as clutch facing, skid and dish type pad not only improve and stablize its brake function, also prolong it and make Use the life-span.

Claims (5)

1. friction materials, one or more that it is characterized in that it comprises 3-50% weight are selected from general formula (1) A xM yTi 2-yO 4The plane layered titanate or general formula (2) H of expression x(M ' y) zTi 2-yO 4NH 2The material of the plane layered titanic acid that O represents is as the friction control agent, and in the general formula (1), the basic metal of A representative except that lithium: on behalf of one or more, M be selected from the element of lithium, magnesium, zinc, nickel, copper, iron, aluminium, gallium or manganese; X is the numeral of 0.5-1.0; Y is the numeral of 0.25-1.0; In the general formula (2), on behalf of one or more, M ' be selected from the element of lithium, magnesium, zinc, nickel, copper, iron, aluminium, gallium or manganese; X is the numeral of 0.5-1.0; Y is the numeral of 0.25-1.0; Z is 0 or 1 numeral; N is the numeral of 0≤n≤2.
2. friction materials as claimed in claim 1, its feature are that also it is that potassium, M are that the plane layered titanate of general formula (1) of zinc or magnesium is as the friction control agent that described friction materials comprises A wherein.
3. friction materials as claimed in claim 1, its feature also be described friction materials comprise M ' wherein for the plane layered titanic acid of the general formula (2) of zinc or magnesium as the friction control agent.
4. friction materials as claimed in claim 1, its feature also be to comprise wherein by described friction materials A be a potassium, and M is that the plane layered titanate of general formula (1) of lithium is as the friction control agent.
5. friction materials as claimed in claim 1, its feature are that also the length of described plane layered titanate or metatitanic acid is the 10-500 micron, and width or thickness are 50-1,000nm.
CNB008001332A 1999-02-09 2000-02-08 Friction material Expired - Fee Related CN1155676C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11031657A JP3027577B1 (en) 1999-02-09 1999-02-09 Friction material
JP31657/1999 1999-02-09

Publications (2)

Publication Number Publication Date
CN1294620A CN1294620A (en) 2001-05-09
CN1155676C true CN1155676C (en) 2004-06-30

Family

ID=12337230

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008001332A Expired - Fee Related CN1155676C (en) 1999-02-09 2000-02-08 Friction material

Country Status (9)

Country Link
US (1) US6432187B1 (en)
EP (1) EP1070751B1 (en)
JP (1) JP3027577B1 (en)
KR (1) KR100401956B1 (en)
CN (1) CN1155676C (en)
AU (1) AU2327900A (en)
DE (1) DE60006746T2 (en)
FR (1) FR1070751T (en)
WO (1) WO2000047689A1 (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100732278B1 (en) * 2000-07-31 2007-06-25 오츠카 가가쿠 홀딩스 가부시키가이샤 Lepidocrosite type potassium magnesium titanate and method for production thereof, and friction material
JP2003082331A (en) 2001-07-02 2003-03-19 Nisshinbo Ind Inc Non-asbestos friction lining
KR100732279B1 (en) 2001-10-29 2007-06-25 오츠카 가가쿠 가부시키가이샤 Repidocrocite type lithium potassium titanate, method for preparation thereof, and friction material
US8021744B2 (en) 2004-06-18 2011-09-20 Borgwarner Inc. Fully fibrous structure friction material
US8603614B2 (en) 2004-07-26 2013-12-10 Borgwarner Inc. Porous friction material with nanoparticles of friction modifying material
US7429418B2 (en) 2004-07-26 2008-09-30 Borgwarner, Inc. Porous friction material comprising nanoparticles of friction modifying material
EP1874850B1 (en) 2005-04-26 2015-08-26 BorgWarner, Inc. Friction material
KR20080064890A (en) 2005-11-02 2008-07-09 보르그워너 인코퍼레이티드 Carbon friction materials
KR100683586B1 (en) * 2006-01-06 2007-02-15 허종율 Brake shoe of railway vehicles
US20070219289A1 (en) * 2006-03-15 2007-09-20 Federal-Mogul World Wide, Inc. Friction Material
JP5073262B2 (en) * 2006-10-06 2012-11-14 株式会社クボタ Friction material containing composite titanic acid compound and powder thereof
JP2008214124A (en) * 2007-03-02 2008-09-18 Otsuka Chemical Co Ltd Titanic acid alkali metal salt-stuck titanate, its production method, and resin composition containing titanic acid alkali metal salt-stuck titanate
JP5189333B2 (en) * 2007-09-14 2013-04-24 株式会社クボタ Amorphous composite alkali metal titanate composition and friction material
DE102008013907B4 (en) 2008-03-12 2016-03-10 Borgwarner Inc. Frictionally-locking device with at least one friction plate
DE102009030506A1 (en) 2008-06-30 2009-12-31 Borgwarner Inc., Auburn Hills friction materials
JP6079235B2 (en) * 2010-11-19 2017-02-15 日立化成株式会社 Non-asbestos friction material composition, friction material and friction member using the same
JP5895366B2 (en) * 2011-06-07 2016-03-30 日立化成株式会社 Non-asbestos friction material composition
JP5895367B2 (en) * 2011-06-07 2016-03-30 日立化成株式会社 Non-asbestos friction material composition
JP5970749B2 (en) * 2011-06-07 2016-08-17 日立化成株式会社 Non-asbestos friction material composition
WO2012169545A1 (en) * 2011-06-07 2012-12-13 日立化成工業株式会社 Non-asbestos friction material composition
JP6157071B2 (en) * 2011-09-14 2017-07-05 曙ブレーキ工業株式会社 Friction material
JP5668989B2 (en) * 2011-11-25 2015-02-12 株式会社アドヴィックス Friction material
JP6304984B2 (en) 2013-09-17 2018-04-04 曙ブレーキ工業株式会社 Friction material
CN104312006A (en) * 2014-09-24 2015-01-28 雪龙集团股份有限公司 Reinforced wear-resistant polypropylene composite material
JP2016160299A (en) * 2015-02-27 2016-09-05 株式会社アドヴィックス Non-asbestos friction material
JP6563676B2 (en) * 2015-04-27 2019-08-21 曙ブレーキ工業株式会社 Friction material composition, friction material and method for producing the same
JP5958623B2 (en) * 2015-08-13 2016-08-02 日立化成株式会社 Non-asbestos friction material composition
JP5958624B2 (en) * 2015-08-13 2016-08-02 日立化成株式会社 Non-asbestos friction material composition
US10233988B2 (en) 2015-09-23 2019-03-19 Akebono Brake Industry Co., Ltd Friction material
JP6233461B2 (en) * 2016-06-22 2017-11-22 日立化成株式会社 Non-asbestos friction material composition
CN106117965A (en) * 2016-06-29 2016-11-16 芜湖德业摩擦材料有限公司 A kind of high temperature resistant brake
CN106015412B (en) * 2016-08-12 2018-05-04 颜丽雅 Good ceramic brake of a kind of high-temperature stability and preparation method thereof
EP3556730A4 (en) * 2016-12-13 2020-08-12 Otsuka Chemical Co., Ltd. Potassium titanate powder, method for producing same, friction modifier, resin composition, friction material, and friction member
WO2021125144A1 (en) * 2019-12-19 2021-06-24 曙ブレーキ工業株式会社 Friction material
KR102571363B1 (en) * 2021-11-24 2023-08-25 강유영 Air conditioner compressor clutch friction pad and manufacturing method thereof

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2602369B2 (en) * 1991-03-18 1997-04-23 株式会社クボタ Heat resistant friction material
JPH05221795A (en) * 1992-02-10 1993-08-31 Natl Inst For Res In Inorg Mater Production of monoclinic plate crystal having layer structure represented by axmyti2-yo4
US5383963A (en) * 1993-02-22 1995-01-24 Kubota Corporation Composite fibers of potassium hexatitanate and titanium dioxide
JP2939604B2 (en) * 1993-05-19 1999-08-25 株式会社クボタ Friction material
JPH1046137A (en) * 1996-07-31 1998-02-17 Kubota Corp Friction material
JP3537066B2 (en) * 1996-07-31 2004-06-14 株式会社クボタ Composite titanium compound powder and method for producing the same
DE19631220C2 (en) * 1996-08-02 2000-03-23 Beiersdorf Ag Foamy or foamable preparations containing surfactants and electrolytes
JPH10279924A (en) * 1997-04-09 1998-10-20 Kubota Corp Friction material for non-asbestos brake
JPH11246678A (en) * 1998-03-03 1999-09-14 Kubota Corp Frictional material
JP3768018B2 (en) * 1998-12-14 2006-04-19 株式会社クボタ Composite titanium compound powder and method for producing the same
ATE556032T1 (en) * 1999-03-16 2012-05-15 Otsuka Chemical Co Ltd SHEET-SHAPED POTASSIUM TITANATE, METHOD FOR PRODUCING THEREOF AND FRICTION MATERIAL
JP2000264692A (en) * 1999-03-16 2000-09-26 Otsuka Chem Co Ltd Friction material
JP2001019430A (en) * 1999-07-06 2001-01-23 Kawatetsu Mining Co Ltd Potassium titanate particles

Also Published As

Publication number Publication date
CN1294620A (en) 2001-05-09
KR20010042576A (en) 2001-05-25
EP1070751A1 (en) 2001-01-24
JP2000230168A (en) 2000-08-22
FR1070751T (en) 2004-08-27
KR100401956B1 (en) 2003-10-17
DE60006746T2 (en) 2004-09-23
AU2327900A (en) 2000-08-29
DE60006746D1 (en) 2004-01-08
JP3027577B1 (en) 2000-04-04
WO2000047689A1 (en) 2000-08-17
US6432187B1 (en) 2002-08-13
EP1070751A4 (en) 2001-08-22
EP1070751B1 (en) 2003-11-26

Similar Documents

Publication Publication Date Title
CN1155676C (en) Friction material
JP4204132B2 (en) Friction material
KR100732278B1 (en) Lepidocrosite type potassium magnesium titanate and method for production thereof, and friction material
CN1288090C (en) Repidocrote type lithium potassium titanate, method for preparation thereof, and friction material
CN104854213A (en) Friction material
CN102947407A (en) Friction material
CN109780101A (en) A kind of Non-copper friction material and preparation method thereof
JP4313458B2 (en) Friction material
JP4435929B2 (en) Plate-like potassium titanate, method for producing the same, and friction material
JPH069948A (en) Friction material
JPH01294553A (en) Friction material
JP2000264689A (en) Friction material
JPS61191599A (en) Friction material
JP3838529B2 (en) Non-asbestos friction material
JP2816906B2 (en) Friction material
JP2000265158A (en) Friction material
JP2939604B2 (en) Friction material
CN115698219A (en) Friction pair
JP2000192014A (en) Friction material
JP2958602B2 (en) Friction material
JPH0853553A (en) Friction material
JPH09278905A (en) Friction material
JPH0726033A (en) Friction material
JPH0931214A (en) Frictional material
JPH11116697A (en) Nonasbetos-based friction material

Legal Events

Date Code Title Description
BB1A Publication of application
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040630

Termination date: 20170208

CF01 Termination of patent right due to non-payment of annual fee